wiki_content_updated.html.erb

<p><%= l(:mail_body_wiki_content_updated, :id => link_to(@wiki_content.page.pretty_title, @wiki_content_url),
                                          :author => h(@wiki_content.author)).html_safe %><br />
<em><%= @wiki_content.comments %></em></p>

<p><%= l(:label_view_diff) %>:<br />
<%= link_to @wiki_diff_url, @wiki_diff_url %></p>